329 lines
11 KiB
C
329 lines
11 KiB
C
/*
|
|
* MIT License
|
|
*
|
|
* Copyright (c) 2022 Andreas Nebinger
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "fast_stopwatch_face.h"
|
|
#include "watch.h"
|
|
#include "watch_common_display.h"
|
|
#include "watch_utility.h"
|
|
#include "watch_rtc.h"
|
|
|
|
/*
|
|
This watch face implements the original F-91W stopwatch functionality
|
|
including counting hundredths of seconds and lap timing. There are two
|
|
improvements compared to the functionality of the original:
|
|
1. When reaching 59:59 the counter does not simply jump back to zero,
|
|
but keeps track of hours in the upper right hand corner. (Up to 24h)
|
|
2. Long pressing the light button toggles the led behaviour: it either
|
|
turns on on each button press or it doesn't.
|
|
*/
|
|
|
|
#if __EMSCRIPTEN__
|
|
#include <emscripten.h>
|
|
#include <emscripten/html5.h>
|
|
#else
|
|
#include "tc.h"
|
|
#endif
|
|
|
|
// distant future for background task: January 1, 2083
|
|
static const watch_date_time_t distant_future = {
|
|
.unit = {0, 0, 0, 1, 1, 63}
|
|
};
|
|
|
|
static uint32_t _ticks;
|
|
static uint32_t _lap_ticks;
|
|
static uint8_t _blink_ticks;
|
|
static uint32_t _old_seconds;
|
|
static uint8_t _old_minutes;
|
|
static uint8_t _hours;
|
|
static bool _colon;
|
|
static bool _is_running;
|
|
|
|
#if __EMSCRIPTEN__
|
|
|
|
static long _em_interval_id = 0;
|
|
|
|
void em_cb_handler(void *userData) {
|
|
// interrupt handler for emscripten 128 Hz callbacks
|
|
(void) userData;
|
|
_ticks++;
|
|
}
|
|
|
|
static void _cb_initialize() { }
|
|
|
|
static inline void _cb_stop() {
|
|
emscripten_clear_interval(_em_interval_id);
|
|
_em_interval_id = 0;
|
|
_is_running = false;
|
|
}
|
|
|
|
static inline void _cb_start() {
|
|
// initiate 128 hz callback
|
|
_em_interval_id = emscripten_set_interval(em_cb_handler, (double)(1000/128), (void *)NULL);
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void _cb_start() {
|
|
// start the TC1 timer
|
|
tc_enable(1);
|
|
_is_running = true;
|
|
}
|
|
|
|
static inline void _cb_stop() {
|
|
// stop the TC1 timer
|
|
tc_disable(1);
|
|
_is_running = false;
|
|
}
|
|
|
|
static void _cb_initialize() {
|
|
tc_init(1, GENERIC_CLOCK_3, TC_PRESCALER_DIV4);
|
|
tc_set_counter_mode(1, TC_COUNTER_MODE_8BIT);
|
|
tc_set_run_in_standby(1, true);
|
|
_cb_stop();
|
|
tc_count8_set_period(1, 1); // 1024 Hz divided by 4 divided by 2 results in a 128 Hz interrupt
|
|
/// FIXME: #SecondMovement, we need a gossamer wrapper for interrupts.
|
|
TC1->COUNT8.INTENSET.bit.OVF = 1;
|
|
NVIC_ClearPendingIRQ(TC1_IRQn);
|
|
NVIC_EnableIRQ (TC1_IRQn);
|
|
}
|
|
|
|
void irq_handler_tc1(void);
|
|
void irq_handler_tc1(void) {
|
|
// interrupt handler for TC1 (globally!)
|
|
_ticks++;
|
|
TC1->COUNT8.INTFLAG.reg |= TC_INTFLAG_OVF;
|
|
}
|
|
|
|
#endif
|
|
|
|
static inline void _button_beep() {
|
|
// play a beep as confirmation for a button press (if applicable)
|
|
if (movement_button_should_sound()) watch_buzzer_play_note_with_volume(BUZZER_NOTE_C7, 50, movement_button_volume());
|
|
}
|
|
|
|
/// @brief Display minutes, seconds and fractions derived from 128 Hz tick counter
|
|
/// on the lcd.
|
|
/// @param ticks
|
|
static void _display_ticks(uint32_t ticks) {
|
|
char buf[14];
|
|
uint8_t sec_100 = (ticks & 0x7F) * 100 / 128;
|
|
uint32_t seconds = ticks >> 7;
|
|
uint32_t minutes = seconds / 60;
|
|
if (_hours) {
|
|
sprintf(buf, "%2u", _hours);
|
|
watch_display_text(WATCH_POSITION_TOP_RIGHT, buf);
|
|
} else {
|
|
watch_display_text(WATCH_POSITION_TOP_RIGHT, " ");
|
|
}
|
|
|
|
sprintf(buf, "%02lu%02lu%02u", minutes, (seconds % 60), sec_100);
|
|
watch_display_text(WATCH_POSITION_BOTTOM, buf);
|
|
}
|
|
|
|
/// @brief Displays the current stopwatch time on the LCD (more optimized than _display_ticks())
|
|
static void _draw() {
|
|
if (_lap_ticks == 0) {
|
|
char buf[14];
|
|
uint8_t sec_100 = (_ticks & 0x7F) * 100 / 128;
|
|
if (_is_running) {
|
|
uint32_t seconds = _ticks >> 7;
|
|
if (seconds != _old_seconds) {
|
|
// seconds have changed
|
|
_old_seconds = seconds;
|
|
uint8_t minutes = seconds / 60;
|
|
seconds %= 60;
|
|
if (minutes != _old_minutes) {
|
|
// minutes have changed, draw everything
|
|
_old_minutes = minutes;
|
|
minutes %= 60;
|
|
if (_hours) {
|
|
// with hour indicator
|
|
sprintf(buf, "%2u", _hours);
|
|
watch_display_text(WATCH_POSITION_TOP_RIGHT, buf);
|
|
} else {
|
|
// no hour indicator
|
|
watch_display_text(WATCH_POSITION_TOP_RIGHT, " ");
|
|
}
|
|
sprintf(buf, "%02u%02lu%02u", minutes, seconds, sec_100);
|
|
watch_display_text(WATCH_POSITION_BOTTOM, buf);
|
|
} else {
|
|
// just draw seconds
|
|
sprintf(buf, "%02lu", seconds);
|
|
// note that we're drawing the seconds in the "minutes" position, since this
|
|
// watch face uses the "seconds" position for hundredths of seconds
|
|
watch_display_text(WATCH_POSITION_MINUTES, buf);
|
|
watch_display_character_lp_seconds('0' + sec_100 / 10, 8);
|
|
watch_display_character_lp_seconds('0' + sec_100 % 10, 9);
|
|
}
|
|
} else {
|
|
// only draw 100ths of seconds
|
|
watch_display_character_lp_seconds('0' + sec_100 / 10, 8);
|
|
watch_display_character_lp_seconds('0' + sec_100 % 10, 9);
|
|
}
|
|
} else {
|
|
_display_ticks(_ticks);
|
|
}
|
|
}
|
|
if (_is_running) {
|
|
// blink the colon every half second
|
|
uint8_t blink_ticks = ((_ticks >> 6) & 1);
|
|
if (blink_ticks != _blink_ticks) {
|
|
_blink_ticks = blink_ticks;
|
|
_colon = !_colon;
|
|
if (_colon) watch_set_colon();
|
|
else watch_clear_colon();
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline void _update_lap_indicator() {
|
|
if (_lap_ticks) watch_set_indicator(WATCH_INDICATOR_LAP);
|
|
else watch_clear_indicator(WATCH_INDICATOR_LAP);
|
|
}
|
|
|
|
static inline void _set_colon() {
|
|
watch_set_colon();
|
|
_colon = true;
|
|
}
|
|
|
|
void fast_stopwatch_face_setup(uint8_t watch_face_index, void ** context_ptr) {
|
|
(void) watch_face_index;
|
|
if (*context_ptr == NULL) {
|
|
*context_ptr = malloc(sizeof(fast_stopwatch_state_t));
|
|
memset(*context_ptr, 0, sizeof(fast_stopwatch_state_t));
|
|
fast_stopwatch_state_t *state = (fast_stopwatch_state_t *)*context_ptr;
|
|
_ticks = _lap_ticks = _blink_ticks = _old_minutes = _old_seconds = _hours = 0;
|
|
_is_running = _colon = false;
|
|
state->light_on_button = true;
|
|
}
|
|
if (!_is_running) {
|
|
// prepare the 128 Hz callback source
|
|
_cb_initialize();
|
|
}
|
|
}
|
|
|
|
void fast_stopwatch_face_activate(void *context) {
|
|
(void) context;
|
|
if (_is_running) {
|
|
// The background task will keep the watch from entering low energy mode while the stopwatch is on screen.
|
|
movement_schedule_background_task(distant_future);
|
|
}
|
|
}
|
|
|
|
bool fast_stopwatch_face_loop(movement_event_t event, void *context) {
|
|
fast_stopwatch_state_t *state = (fast_stopwatch_state_t *)context;
|
|
|
|
// handle overflow of fast ticks
|
|
while (_ticks >= (128 * 60 * 60)) {
|
|
_ticks -= (128 * 60 * 60);
|
|
_hours++;
|
|
if (_hours >= 24) _hours -= 24;
|
|
// initiate a re-draw
|
|
_old_minutes = 59;
|
|
}
|
|
|
|
switch (event.event_type) {
|
|
case EVENT_ACTIVATE:
|
|
_set_colon();
|
|
watch_display_text_with_fallback(WATCH_POSITION_TOP_LEFT, "STW", "ST");
|
|
_update_lap_indicator();
|
|
if (_is_running) movement_request_tick_frequency(16);
|
|
_display_ticks(_lap_ticks ? _lap_ticks : _ticks);
|
|
break;
|
|
case EVENT_TICK:
|
|
_draw();
|
|
break;
|
|
case EVENT_LIGHT_LONG_PRESS:
|
|
// kind od hidden feature: long press toggles light on or off
|
|
state->light_on_button = !state->light_on_button;
|
|
if (state->light_on_button) movement_illuminate_led();
|
|
else watch_set_led_off();
|
|
break;
|
|
case EVENT_ALARM_BUTTON_DOWN:
|
|
_is_running = !_is_running;
|
|
if (_is_running) {
|
|
// start or continue stopwatch
|
|
movement_request_tick_frequency(16);
|
|
// register 128 hz callback for time measuring
|
|
_cb_start();
|
|
// schedule the keepalive task when running
|
|
movement_schedule_background_task(distant_future);
|
|
} else {
|
|
// stop the stopwatch
|
|
_cb_stop();
|
|
movement_request_tick_frequency(1);
|
|
_set_colon();
|
|
// cancel the keepalive task
|
|
movement_cancel_background_task();
|
|
}
|
|
_draw();
|
|
_button_beep();
|
|
break;
|
|
case EVENT_LIGHT_BUTTON_DOWN:
|
|
if (state->light_on_button) movement_illuminate_led();
|
|
if (_is_running) {
|
|
if (_lap_ticks) {
|
|
// clear lap and continue running
|
|
_lap_ticks = 0;
|
|
movement_request_tick_frequency(16);
|
|
} else {
|
|
// set lap ticks and stop updating the display
|
|
_lap_ticks = _ticks;
|
|
movement_request_tick_frequency(2);
|
|
_set_colon();
|
|
}
|
|
} else {
|
|
if (_lap_ticks) {
|
|
// clear lap and show running stopwatch
|
|
_lap_ticks = 0;
|
|
} else if (_ticks) {
|
|
// reset stopwatch
|
|
_ticks = _lap_ticks = _blink_ticks = _old_minutes = _old_seconds = _hours = 0;
|
|
_button_beep();
|
|
}
|
|
}
|
|
_display_ticks(_ticks);
|
|
_update_lap_indicator();
|
|
break;
|
|
case EVENT_TIMEOUT:
|
|
if (!_is_running) movement_move_to_face(0);
|
|
break;
|
|
case EVENT_LOW_ENERGY_UPDATE:
|
|
_draw();
|
|
break;
|
|
default:
|
|
movement_default_loop_handler(event);
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void fast_stopwatch_face_resign(void *context) {
|
|
(void) context;
|
|
// cancel the keepalive task
|
|
movement_cancel_background_task();
|
|
}
|